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<a href="#func-members">Functions</a>  </div>
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<div class="title">arm_cfft_q15.c File Reference</div>  </div>
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<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a10af006080b7c9872dd9a538b79040da"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#a10af006080b7c9872dd9a538b79040da">arm_radix4_butterfly_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef, uint32_t twidCoefModifier)</td></tr>
<tr class="memdesc:a10af006080b7c9872dd9a538b79040da"><td class="mdescLeft">&#160;</td><td class="mdescRight">Core function for the Q15 CFFT butterfly process.  <a href="#a10af006080b7c9872dd9a538b79040da">More...</a><br/></td></tr>
<tr class="separator:a10af006080b7c9872dd9a538b79040da"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a9c0708cce16e3f17a5a616c71fd17ec5"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#a9c0708cce16e3f17a5a616c71fd17ec5">arm_radix4_butterfly_inverse_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef, uint32_t twidCoefModifier)</td></tr>
<tr class="memdesc:a9c0708cce16e3f17a5a616c71fd17ec5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Core function for the Q15 CIFFT butterfly process.  <a href="#a9c0708cce16e3f17a5a616c71fd17ec5">More...</a><br/></td></tr>
<tr class="separator:a9c0708cce16e3f17a5a616c71fd17ec5"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a773957c278f4d9e728711f27e8a6e278"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#a773957c278f4d9e728711f27e8a6e278">arm_bitreversal_16</a> (uint16_t *pSrc, const uint16_t bitRevLen, const uint16_t *pBitRevTable)</td></tr>
<tr class="memdesc:a773957c278f4d9e728711f27e8a6e278"><td class="mdescLeft">&#160;</td><td class="mdescRight">In-place 16 bit reversal function.  <a href="#a773957c278f4d9e728711f27e8a6e278">More...</a><br/></td></tr>
<tr class="separator:a773957c278f4d9e728711f27e8a6e278"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:af1d4a751153857c173511e0c77ab4fa9"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#af1d4a751153857c173511e0c77ab4fa9">arm_cfft_radix4by2_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef)</td></tr>
<tr class="separator:af1d4a751153857c173511e0c77ab4fa9"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:abe669acc8db57d1fb9b1e2bba30f2224"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="arm__cfft__q15_8c.html#abe669acc8db57d1fb9b1e2bba30f2224">arm_cfft_radix4by2_inverse_q15</a> (<a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pSrc, uint32_t fftLen, const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *pCoef)</td></tr>
<tr class="separator:abe669acc8db57d1fb9b1e2bba30f2224"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ga68cdacd2267a2967955e40e6b7ec1229"><td class="memItemLeft" align="right" valign="top">void&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">arm_cfft_q15</a> (const <a class="el" href="structarm__cfft__instance__q15.html">arm_cfft_instance_q15</a> *S, <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *p1, uint8_t <a class="el" href="arm__fft__bin__example__f32_8c.html#a379ccb99013d369a41b49619083c16ef">ifftFlag</a>, uint8_t bitReverseFlag)</td></tr>
<tr class="memdesc:ga68cdacd2267a2967955e40e6b7ec1229"><td class="mdescLeft">&#160;</td><td class="mdescRight">Processing function for Q15 complex FFT.  <a href="group__ComplexFFT.html#ga68cdacd2267a2967955e40e6b7ec1229">More...</a><br/></td></tr>
<tr class="separator:ga68cdacd2267a2967955e40e6b7ec1229"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a class="anchor" id="a773957c278f4d9e728711f27e8a6e278"></a>
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          <td class="memname">void arm_bitreversal_16 </td>
          <td>(</td>
          <td class="paramtype">uint16_t *&#160;</td>
          <td class="paramname"><em>pSrc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t&#160;</td>
          <td class="paramname"><em>bitRevLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const uint16_t *&#160;</td>
          <td class="paramname"><em>pBitRevTab</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc</td><td>points to in-place buffer of unknown 16-bit data type </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">bitRevLen</td><td>bit reversal table length </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pBitRevTab</td><td>points to bit reversal table </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>

</div>
</div>
<a class="anchor" id="abe669acc8db57d1fb9b1e2bba30f2224"></a>
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          <td class="memname">void arm_cfft_radix4by2_inverse_q15 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pSrc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>fftLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pCoef</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">

</div>
</div>
<a class="anchor" id="af1d4a751153857c173511e0c77ab4fa9"></a>
<div class="memitem">
<div class="memproto">
      <table class="memname">
        <tr>
          <td class="memname">void arm_cfft_radix4by2_q15 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pSrc</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>fftLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pCoef</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>end of ComplexFFT group </p>

</div>
</div>
<a class="anchor" id="a9c0708cce16e3f17a5a616c71fd17ec5"></a>
<div class="memitem">
<div class="memproto">
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        <tr>
          <td class="memname">void arm_radix4_butterfly_inverse_q15 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pSrc16</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>fftLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pCoef16</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>twidCoefModifier</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc16</td><td>points to the in-place buffer of Q15 data type </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pCoef16</td><td>points to twiddle coefficient buffer </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">twidCoefModifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>

</div>
</div>
<a class="anchor" id="a10af006080b7c9872dd9a538b79040da"></a>
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<div class="memproto">
      <table class="memname">
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          <td class="memname">void arm_radix4_butterfly_q15 </td>
          <td>(</td>
          <td class="paramtype"><a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pSrc16</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>fftLen</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="arm__math_8h.html#ab5a8fb21a5b3b983d5f54f31614052ea">q15_t</a> *&#160;</td>
          <td class="paramname"><em>pCoef16</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">uint32_t&#160;</td>
          <td class="paramname"><em>twidCoefModifier</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td></td>
        </tr>
      </table>
</div><div class="memdoc">
<p>end of ComplexFFT group </p>
<dl class="params"><dt>Parameters</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in,out]</td><td class="paramname">pSrc16</td><td>points to the in-place buffer of Q15 data type </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">fftLen</td><td>length of the FFT </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">pCoef16</td><td>points to twiddle coefficient buffer </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">twidCoefModifier</td><td>twiddle coefficient modifier that supports different size FFTs with the same twiddle factor table </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>none </dd></dl>

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